LF230, LF230-S Spring return actuators 4 Nm
... 1 m long, 2 x 0.75 mm2 – auxiliary switch (LF230-S) 1 m long, 3 x 0.75 mm2 Auxiliary switch (LF230-S) 1 x SPDT 6 (1.5) A, AC 250 V – Switching point adjustable 0...100% Direction of rotation selected by mounting L/R Torque – motor min. 4 Nm (at rated voltage) – spring return min. 4 Nm Torque max. 95 ...
... 1 m long, 2 x 0.75 mm2 – auxiliary switch (LF230-S) 1 m long, 3 x 0.75 mm2 Auxiliary switch (LF230-S) 1 x SPDT 6 (1.5) A, AC 250 V – Switching point adjustable 0...100% Direction of rotation selected by mounting L/R Torque – motor min. 4 Nm (at rated voltage) – spring return min. 4 Nm Torque max. 95 ...
FDMF6705B - Extra-Small, High-Performance, High- Frequency DrMOS Module FDMF6705B - Extra-S m
... shutdown window. When the PWM input signal enters and remains within the three-state window for a defined hold-off time (tD_HOLD-OFF), both GL and GH are pulled LOW. This feature enables the gate drive to shut down both high-and low-side MOSFETs to support features such as phase shedding, which is a ...
... shutdown window. When the PWM input signal enters and remains within the three-state window for a defined hold-off time (tD_HOLD-OFF), both GL and GH are pulled LOW. This feature enables the gate drive to shut down both high-and low-side MOSFETs to support features such as phase shedding, which is a ...
C22 Preamplifier User Manual
... The circuit design is with referenced to the classical McIntosh C22 pre-amplifier. It uses three 12AX7 vacuum tubes for amplification and uses one pentode-triode vacuum tube 6F3P (6BM8) as voltage regulation. Vishay 1N5062 forming a bridge provide for fullwave rectification. The resulted ~300V DC. A ...
... The circuit design is with referenced to the classical McIntosh C22 pre-amplifier. It uses three 12AX7 vacuum tubes for amplification and uses one pentode-triode vacuum tube 6F3P (6BM8) as voltage regulation. Vishay 1N5062 forming a bridge provide for fullwave rectification. The resulted ~300V DC. A ...
SG6742HL/HR Highly Integrated Green-Mode PWM Controller SG6742H L/H
... positive ramp signal fed to the inverting input of the OCP comparator. This results in a lower current limit at high-line inputs than at low-line inputs. ...
... positive ramp signal fed to the inverting input of the OCP comparator. This results in a lower current limit at high-line inputs than at low-line inputs. ...
TEACHING AND DEMONSTRATION OF OPTIMIZED DESIGN
... mainframe computers, and it has since been improved and adapted for use on personal computers. The demo version is limited to 2500 time steps and 40 variables (node potentials and branch currents). This is considered to be sufficient for most educational and demonstration purposes, but the full vers ...
... mainframe computers, and it has since been improved and adapted for use on personal computers. The demo version is limited to 2500 time steps and 40 variables (node potentials and branch currents). This is considered to be sufficient for most educational and demonstration purposes, but the full vers ...
P7B Mechanical Specifications Submittal
... The P7 is a high performance PWM (pulse-width-modulated) AC drive. Three-phase input line power is converted to a sine-coded, variable frequency output, which provides optimum speed control of any conventional squirrel cage induction motor. The use of IGBTs (Insulated Gate Bipolar Transistors), with ...
... The P7 is a high performance PWM (pulse-width-modulated) AC drive. Three-phase input line power is converted to a sine-coded, variable frequency output, which provides optimum speed control of any conventional squirrel cage induction motor. The use of IGBTs (Insulated Gate Bipolar Transistors), with ...
DC1664 - LTC3109EUF Evaluation Kit Quick Start Guide
... The Demonstration Circuit has been set up with a storage capacitor that makes it easy to evaluate the general functionality of the circuit. The lower value capacitor allows for a fast charge time but limits the pulsed energy that can be drawn from it. Space is provided, and alternate part footprints ...
... The Demonstration Circuit has been set up with a storage capacitor that makes it easy to evaluate the general functionality of the circuit. The lower value capacitor allows for a fast charge time but limits the pulsed energy that can be drawn from it. Space is provided, and alternate part footprints ...
the common-source amplifier
... For the circuit shown in Figure 6.13, assume that the transistor is biased in the saturation region by resistors R1 and R2, and that the signal frequency is sufficiently large for the coupling capacitor to act essentially as a short circuit. The signal source is represented by a Thevenin equivalent ...
... For the circuit shown in Figure 6.13, assume that the transistor is biased in the saturation region by resistors R1 and R2, and that the signal frequency is sufficiently large for the coupling capacitor to act essentially as a short circuit. The signal source is represented by a Thevenin equivalent ...
How step-motor performance
... 1,2,3) use a much higher supply voltage than the rated voltage of the motor (typically 10 times higher or more). They also use current-sensing circuitry and apply pulse-width modulation (PWM) to the supply voltage to maintain ...
... 1,2,3) use a much higher supply voltage than the rated voltage of the motor (typically 10 times higher or more). They also use current-sensing circuitry and apply pulse-width modulation (PWM) to the supply voltage to maintain ...
7154 VFD - Cincinnati State
... is reduced. These watts are expended as heat instead of as mechanical power. When a harmonic compensated reactor is added to the VFD output, harmonics are reduced, causing motor watts loss to be reduced. The motor is able to deliver more power to the load at greater efficiency. Utility tests conduct ...
... is reduced. These watts are expended as heat instead of as mechanical power. When a harmonic compensated reactor is added to the VFD output, harmonics are reduced, causing motor watts loss to be reduced. The motor is able to deliver more power to the load at greater efficiency. Utility tests conduct ...
PM7503 - Outram Research
... User Preferences - Stored in non-volatile Flash Memory. Configurations: Space for over 200 files that may be used for both configuration and recording sessions. Data Retention: Sequential data is saved to Flash memory during recording. Waveform capture data is held in RAM and transferred to Flash me ...
... User Preferences - Stored in non-volatile Flash Memory. Configurations: Space for over 200 files that may be used for both configuration and recording sessions. Data Retention: Sequential data is saved to Flash memory during recording. Waveform capture data is held in RAM and transferred to Flash me ...
example abstract
... PETs in the literature. Matrix converters, known as direct AC–AC Power Converters, were first presented by Venturini and Alesina in 1979 and these converters has a great deal of advantages when compared to the DC-link converters. In matrix converters, AC voltage is directly converted into a variable ...
... PETs in the literature. Matrix converters, known as direct AC–AC Power Converters, were first presented by Venturini and Alesina in 1979 and these converters has a great deal of advantages when compared to the DC-link converters. In matrix converters, AC voltage is directly converted into a variable ...
How Electrical Interference can cripple your Control System
... indicator to changes in signal level. Since temperatures don’t change all that fast, this is not usually a problem. If you are scanning multiple inputs into a time-shared instrument containing a filter you may have to put up with a slow scanning speed in order to wait out the settling time of the fi ...
... indicator to changes in signal level. Since temperatures don’t change all that fast, this is not usually a problem. If you are scanning multiple inputs into a time-shared instrument containing a filter you may have to put up with a slow scanning speed in order to wait out the settling time of the fi ...
Power Quality Conditioner with Series-Parallel
... based controllers. In the first mode the series converter acts as a sinusoidal current source, while the parallel converter acts as a sinusoidal voltage source. In the second mode, the series converter acts as a non-sinusoidal voltage source, while the parallel converter acts as a non sinusoidal cur ...
... based controllers. In the first mode the series converter acts as a sinusoidal current source, while the parallel converter acts as a sinusoidal voltage source. In the second mode, the series converter acts as a non-sinusoidal voltage source, while the parallel converter acts as a non sinusoidal cur ...
File
... input terminal, output terminal, both referenced to a common reference (ground) – Vref, GND Vpos, Vsupply, or VCC, or VDD. Vneg, Vss, or VEE They are also known as the rails of an amplifier. Made with resistors, capacitors, and transistors. ...
... input terminal, output terminal, both referenced to a common reference (ground) – Vref, GND Vpos, Vsupply, or VCC, or VDD. Vneg, Vss, or VEE They are also known as the rails of an amplifier. Made with resistors, capacitors, and transistors. ...
Ampzilla review from Audio Magazine
... wave into a 1 pF load and a 2O-kHz sine wave into eight ohms with a 2 dB input overdrive where the input is increased 2 dB over the value that just causes the output to begin to clip The large signal square wave indicates the amplifier's ability to deliver in excess of 10 amps into a'l pF load. This ...
... wave into a 1 pF load and a 2O-kHz sine wave into eight ohms with a 2 dB input overdrive where the input is increased 2 dB over the value that just causes the output to begin to clip The large signal square wave indicates the amplifier's ability to deliver in excess of 10 amps into a'l pF load. This ...
Predictive Optimal Switching Sequence Direct Power Control for
... Grid connected power converters play a key role in several applications such as integration of renewable energy sources and motor drives. For this reason, the development of high performance control strategies for this particular class of power converters has increasingly attracted the interest of b ...
... Grid connected power converters play a key role in several applications such as integration of renewable energy sources and motor drives. For this reason, the development of high performance control strategies for this particular class of power converters has increasingly attracted the interest of b ...
Document
... Similar to the direct conventional single stage converter, this topology can achieve near sinusoidal line/load currents, controllable input power factor, regeneration capability, etc. Moreover, it has a more secure and less complex commutation process as well as a simple clamp circuit. Compared ...
... Similar to the direct conventional single stage converter, this topology can achieve near sinusoidal line/load currents, controllable input power factor, regeneration capability, etc. Moreover, it has a more secure and less complex commutation process as well as a simple clamp circuit. Compared ...
Produce High DC/DC Step-Down Ratios in Tight Spaces with 30ns
... resistor is used for improved current limit accuracy, Kelvin-connect the VIN and SENSE pins of the IC to the positive and negative terminals of the sense resistor, respectively. The circuits featured here operate in forced continuous mode, for constant frequency operation at any load. If higher ligh ...
... resistor is used for improved current limit accuracy, Kelvin-connect the VIN and SENSE pins of the IC to the positive and negative terminals of the sense resistor, respectively. The circuits featured here operate in forced continuous mode, for constant frequency operation at any load. If higher ligh ...
energy discharge capacitors uctance sangamo electric - sonar-info
... and the dissipation factor of standord units ore measured on a Generai Radio 161 IA bridge or equivalent at a frequency of 60 cycles per second and referred to a temperature of 25°C. The voltage rating of each unit is the peak d-c voltage to which the capacitors ore to be chorged. The chorging ti me ...
... and the dissipation factor of standord units ore measured on a Generai Radio 161 IA bridge or equivalent at a frequency of 60 cycles per second and referred to a temperature of 25°C. The voltage rating of each unit is the peak d-c voltage to which the capacitors ore to be chorged. The chorging ti me ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.